@lyra/form-builder/lib/patch/primitive.js

Lyra form builder

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = apply;
const OPERATIONS = {
  replace(currentValue, nextValue) {
    return nextValue;
  },
  set(currentValue, nextValue) {
    return nextValue;
  },
  setIfMissing(currentValue, nextValue) {
    return currentValue === undefined ? nextValue : currentValue;
  },
  unset(currentValue, nextValue) {
    return undefined;
  },
  inc(currentValue, nextValue) {
    return currentValue + nextValue;
  },
  dec(currentValue, nextValue) {
    return currentValue - nextValue;
  }
};

const SUPPORTED_PATCH_TYPES = Object.keys(OPERATIONS);

function apply(value, patch) {
  if (!SUPPORTED_PATCH_TYPES.includes(patch.type)) {
    throw new Error(`Received patch of unsupported type: "${JSON.stringify(patch.type)}" for primitives. This is most likely a bug.`);
  }

  if (patch.path.length > 0) {
    throw new Error(`Cannot apply deep operations on primitive values. Received patch with type "${patch.type}" and path "${patch.path.join('.')} that targeted the value "${JSON.stringify(value)}"`);
  }

  return OPERATIONS[patch.type](value, patch.value);
}